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Unit 2: Atoms, Elements and Compounds (revised 2011)

Screen capture from the TED Ed video “The genius of Mendeleev's periodic table”

The Genius of Mendeleev's Table

STEM Explained

Dmitri Mendeleev’s version of the periodic table was brilliant - find out why!

Keplers Supernova. Image © NASA

The Life and Death of Stars

STEM Explained

The life and death of stars form the chemical elements that make up Earth, making stars critical to life as we know it.

The newest chemical elements

The Newest Elements on the Periodic Table

STEM Explained

The periodic table was last updated in 2016 with four new chemical elements. What is a chemical element? What is the atomic structure of the newest chemical elements? How did they get their names?

Pavlova meringue with fruit

Meringue: The Science Behind a Wonderfully Fluffy Dessert

STEM Explained

Learn about the biochemistry of cooking meringue.

An image showing the symbol, atomic number and relative atomic mass of sodium. Sodium’s symbol is Na, its atomic number is 11 and its relative atomic mass is approximately 22.99.  Image © istockphoto.com/3dalia

Na Na Na Na (Hey Hey Hey) Sodium!

STEM Explained

Sodium is a useful chemical element. You consume it as table salt regularly. Learn about salt mining, sodium uses, and what problems too much sodium can cause.

illustration of a hydrogen car

The History and Uses of Hydrogen

STEM Explained

Hydrogen’s tendency towards combustion is what makes it both a dangerous chemical element and a useful energy source.

heavy metal band

A Taste of Heavy Metal

STEM Explained

Heavy metal is a term for some toxic chemical elements. They can cause problems like bioaccumulation, but are useful in nuclear medicine and medical imaging.

ERIN GONZALES

Erin Gonzales (Video)

Baking Entrepreneur

Erin Gonzales is a Baking Entrepreneur, located in Ontario.
Zachary Emond | Cuisinier

Zachary Emond

Career Profiles

Chef

Zachary Emond is a Chef at the Holiday Inn, St. John’s.
Travis Stewart | Enseignant en arts culinaires

Travis Stewart

Culinary Arts Teacher

Bryan Wilson - General Manager, North American Palladium

Bryan Wilson (Video)

Career Profiles

General Manager

Bryan Wilson is the General Manager at North American Palladium.
Erin Marie G. Gonzales | Copropriétaire

Erin Gonzales

Career Profiles

Co-Owner

Erin Gonzales is a co-owner of Bread 'N Batter Co. in Ontario.
Bryan Wilson | Directeur général, North American Palladium, Lac Des Iles Mine

Bryan Wilson

Career Profiles

General Manager

Bryan Wilson is the general manager at North American Palladium.